# September 2023 Module Week 5 Homework Assignment Chapter 7 Homework PART 1 1 point

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Module Week 5 Homework Assignment Chapter 7 Homework PART 1 1 point 2023

Module/Week 5 Homework Assignment Chapter 7 Homework PART 1: (1 point) Given the following table, identify the functional dependencies: StdSSN StdCity StdClass OfferNo OffTerm OffYear EnrGrade CourseNo CrsDesc S1 SEATTLE JUN 01 SPRING 2009 3.5 C1 DB S1 SEATTLE JUN 02 FALL 2009 3.3 C2 VB S2 DENVER JUN 03 SPRING 2010 3.1 C3 OO S2 DENVER JUN 02 FALL 2009 3.4 C2 VB StdSSN- StdCity, StdClass OfferNo – OffTerm, OffYear, CourseNo, CrsDesc CourseNo -CrsDesc StdSSN, OfferNo- EnrGrad PART 2: (1 point) In the table provided below, fill in the following data such that it is completely un-normalized. That is, it is not even in 1NF. 222-33-44444 John Doe Web Design, Database, Intro to MIS, C# Programming 555-66-7777 Jane Doe Prin. Of Accounting, Auditing I, Statistical Analysis SSN StudentName Courses 222-33-44444 Jane Doe Web Design Database Intro to Mis C# Programming 555-666-7777 John Doe Prin. OF Accounting Auditing I Statistical Analysis PART 3: (1 point) Using your un-normalized table above, fill in the table below with the data in 1NF. SSN StudentName Courses PART 4: Given the following table and functional dependencies, construct tables below that will satisfy 2NF and identify the primary key of each new table. Note that the primary key of this table is StdSSN + OfferNo. StdSSN StdCity StdClass OfferNo OffTerm OffYear EnrGrade CourseNo CrsDesc S1 SEATTLE JUN 01 SPRING 2009 3.5 C1 DB S1 SEATTLE JUN 02 FALL 2009 3.3 C2 VB S2 DENVER JUN 03 SPRING 2010 3.1 C3 OO S2 DENVER JUN 02 FALL 2009 3.4 C2 VB Functional dependencies: StdSSN à StdCity, StdClass OfferNo à OffTerm, OffYear, CourseNo, CrsDesc StdSSN, OfferNo à EnrGrade (1/2 point) Table 1 Primary Key: _______________________________ (1/2 point) Table 2 Primary Key: _______________________________ (1/2 point) Table 3 Primary Key: _______________________________ PART 5: (1/2 point) Now, assume an additional functional dependency: CourseNo à CrsDesc What table above needs to be modified to accommodate this new functional dependency? _______________________________ PART 6: (1/2 point) Given this new functional dependency, create tables below that will put this table in 3NF. Table 4 Primary Key: _______________________________ Table 5 Primary Key: _______________________________ PART 7: (1/2 point) Identify any foreign keys in Table 4: _______________________________

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